Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

■ The failing subdisks are on non-redundant volumes (that is, volumes of types
other than mirrored or RAID-5).
■ There are insufficient spare disks or free disk space in the disk group.
■ The only available space is on a disk that already contains a mirror of the
failing plex.
■ The only available space is on a disk that already contains the RAID-5 log plex
or one of its healthy subdisks. Failing subdisks in the RAID-5 plex cannot be
relocated.
■ If a mirrored volume has a dirty region logging (DRL) log subdisk as part of its
data plex, failing subdisks belonging to that plex cannot be relocated.
■ If a RAID-5 volume log plex or a mirrored volume DRL log plex fails, a new log
plex is created elsewhere. There is no need to relocate the failed subdisks of
the log plex.
See the vxrelocd(1M) manual page.
Figure 12-1 shows the hot-relocation process in the case of the failure of a single
subdisk of a RAID-5 volume.
Administering hot-relocation
How hot-relocation works
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